1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/assumed_charlen_function_5.f90 b/gcc/testsuite/gfortran.dg/assumed_charlen_function_5.f90
new file mode 100644
index 000000000..8a0788978
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/assumed_charlen_function_5.f90
@@ -0,0 +1,40 @@
+! { dg-do compile }
+! Tests the patch for PR28890, in which a reference to a legal reference
+! to an assumed character length function, passed as a dummy, would
+! cause an ICE.
+!
+! Contributed by Paul Thomas  <pault@gcc.gnu.org>
+!
+character(*) function charrext (n)  ! { dg-warning "Obsolescent feature" }
+  character(26) :: alpha ="abcdefghijklmnopqrstuvwxyz"
+  charrext = alpha (1:n)
+end function charrext
+
+  character(26), external :: charrext
+  interface
+    integer(4) function test(charr, i)  ! { dg-warning "Obsolescent feature" }
+     character(*), external :: charr
+     integer :: i
+    end function test
+  end interface
+
+  do j = 1 , 26
+    m = test (charrext, j)
+    m = ctest (charrext, 27 - j)
+  end do
+contains
+  integer(4) function ctest(charr, i)  ! { dg-warning "Obsolescent feature" }
+    character(*) :: charr
+    integer :: i
+    print *, charr(i)
+    ctest = 1
+  end function ctest
+end
+
+integer(4) function test(charr, i)  ! { dg-warning "Obsolescent feature" }
+  character(*) :: charr
+  integer :: i
+  print *, charr(i)
+  test = 1
+end function test
+